To be considered invasive, a species must be foreign, so it is about when and how it came to Sweden.

An alien species must partly have been introduced by man, and partly moved further than it could have come on its own.

It must also have arrived here later than the year 1800. Of course, it must also behave invasively, which means that it spreads at the expense of other species.

Can result in imprisonment

Invasive species are on various lists.

The species database has the most extensive list of 200-300 species that are deemed to be invasive, but this is only a basis of knowledge.

The Swedish Environmental Protection Agency is the authority responsible for invasive plant species in Sweden and on their list are the species that are banned throughout the EU.

There are a total of 66 animal and plant species, of which twelve occur in Sweden.

The landowner who ignores any of these 66 species on his land is breaking the law and can be fined or, in the worst case, jailed for up to two years.